A156799 -id:A156799 - cp's OEIS frontend

A157334 First differences of A156799.

1, 2, 1, 5, 1, 2, 1, 6, 1, 2, 1, 5, 1, 2, 1, 15, 1, 2, 1, 5, 1, 2, 1, 6, 1, 2, 1, 5, 1, 2, 1, 19, 1, 2, 1, 5, 1, 2, 1, 6, 1, 2, 1, 5, 1, 2, 1, 15, 1, 2, 1, 5, 1, 2, 1, 6, 1, 2, 1, 5, 1, 2, 1, 43, 1, 2, 1, 5, 1, 2, 1, 6, 1, 2, 1, 5, 1, 2, 1, 15, 1, 2, 1, 5, 1, 2, 1, 6, 1, 2, 1, 5, 1, 2, 1, 19

Offset: 0

Paul Curtz, Feb 27 2009

nonn

For 1,2,1 see A131534. First of a family of four: second is 3,1,1,4,3,1,1,2,3=A157076, third is 9,10,9,14,4,1,10 (from 3's in A090822), fourth is 220,221,220,224, (from A157107). Many consequences.

A157140 A091411(k+3) replicated 2^k times, k= 0, 1, 2, 3, ...

Original entry on oeis.org

9, 19, 19, 47, 47, 47, 47, 98, 98, 98, 98, 98, 98, 98, 98, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 441, 441, 441, 441, 441, 441, 441, 441, 441, 441, 441, 441, 441, 441, 441, 441, 441, 441, 441, 441, 441, 441, 441, 441

Offset: 0

Paul Curtz, Feb 24 2009

nonn

Generated from the quadrisection b(n) =  4, 13, 23, 32, 51, 60, 70, 79, 102, 111, 121, 130,... of A156799 as follows:
1) b(n+1)-b(n) = 9, 10, 9, 19, 9, 10, 9, 23, 9, 10, 9, 19,..,
2) b(n+2)-b(n) = 19, 19, 28, 28, 19, 19, 32, 32, 19, 19, 28, 28,...,
3) b(n+4)-b(n) = 47, 47, 47, 47, 51, 51, 51, 51, 47, 47, 47, 47,...,
4) b(n+8)-b(n) = 98, 98, 98, 98, 98, 98, 98, 98, 122, 122, 122, 122, 122, 122, 122, 122, 98, .. .
The sum of neighbors at the first jump of b(n+2^k) is 9+10 = 19 (k=0), 19+28 = 47 (k=1), 47+51 = 98 (k=2), 98+122 = 220 (k=3), and in general A091411(k+3).

cp's OEIS Frontend

A157334 First differences of A156799.

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A157140 A091411(k+3) replicated 2^k times, k= 0, 1, 2, 3, ...

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