user4823: Within the hex generated by createrawtransaction, I am trying to understand the output 1 hex.
The output 1 hex I have is: 

76a914ab68025513c3dbd2f7b92a94e0581f5d50f654e788ac

Spacing out the sections:

76 a9 14 ab68025513c3dbd2f7b92a94e0581f5d50f654e7 88 ac

Breaking it down further:

76 = OP_DUP
a9 = OP_HASH160
14 = ?
ab68025513c3dbd2f7b92a94e0581f5d50f654e7 = HASH160(pubKey)
88 = OP_EQUALVERIFY
ac = OP_CHECKSIG

What does that 14 mean/represent?

user30668: Values from 1-75 represent a number of bytes to be pushed into the stack. I that case, 14 hex is 20 dec, and will push the 20 bytes of the hash160. 

user7272: It's a push op code. 0x14 (20 in decimal) tells the script to that the next 20 bytes must be pushed to the stack (the hash).
You can view a full list of OP_CODEs here.

4823: <p>Within the hex generated by <code>createrawtransaction</code>, I am trying to understand the output 1 hex.</p>

<p>The output 1 hex I have is: </p>

<blockquote>
  <p>76a9<strong>14</strong>ab68025513c3dbd2f7b92a94e0581f5d50f654e788ac</p>
</blockquote>

<p>Spacing out the sections:</p>

<blockquote>
  <p>76 a9 <strong>14</strong> ab68025513c3dbd2f7b92a94e0581f5d50f654e7 88 ac</p>
</blockquote>

<p>Breaking it down further:</p>

<blockquote>
  <p>76 = OP_DUP</p>
  
  <p>a9 = OP_HASH160</p>
  
  <p><strong>14 = ?</strong></p>
  
  <p>ab68025513c3dbd2f7b92a94e0581f5d50f654e7 = HASH160(pubKey)</p>
  
  <p>88 = OP_EQUALVERIFY</p>
  
  <p>ac = OP_CHECKSIG</p>
</blockquote>

<p>What does that <strong>14</strong> mean/represent?</p>
 30668: <p>Values from <code>1-75</code> represent a number of bytes to be pushed into the stack. I that case, <code>14 hex</code> is <code>20 dec</code>, and will push the <code>20 bytes</code> of the <code>hash160</code>. </p>
 7272: <p>It's a push op code. 0x14 (20 in decimal) tells the script to that the next 20 bytes must be pushed to the stack (the hash).</p>

<p>You can view a full list of OP_CODEs <a href="https://en.bitcoin.it/wiki/Script#Opcodes" rel="nofollow noreferrer">here</a>.</p>
