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The sum of terms of row n is equal to the leftmost term of row n+1. This sequence is related to the generalized tridecagonal numbers 195313A195313, A195833 and A196933 in the same way as A175003 is related to the generalized pentagonal numbers A001318, A195310 and A000041. See comments in A195825.

approved

editing

Omar E. Pol: Fix typo.

_Omar E. Pol (info(AT)polprimos.com), _, Sep 24 2011

OEIS Server: https://oeis.org/edit/global/157

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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 3, 1, 4, 1, -1, 4, 1, -1, 4, 1, -1, 4, 1, -1, 4, 1, -1, 4, 1, -1, 4, 1, -1, 4, 2, -1, 5, 3, -1, 7, 4, -1, 10, 4, -2, 12, 4, -3, 13, 4, -4, 13, 4, -4, 13, 4, -4, 13, 4, -4, 13, 4, -4, 13, 5, -4, 14, 7, -4, -1

Written as a triangle:

1;

1;

1;

1;

1;

1;

1;

1;

1;

1, 1;

2, 1;

3, 1;

4, 1, -1;

4, 1, -1;

4, 1, -1;

4, 1, -1;

4, 1, -1;

4, 1, -1;

4, 1, -1;

4, 2, -1;

5, 3, -1;

7, 4, -1;

Row sums give A196933.

Cf. A001082, A175003, A195828, A195836, A195837, A195838, A195839, A195840, A195841, A195842.

The sum of terms of row n is equal to the leftmost term of row n+1. This sequence is related to the generalized tridecagonal numbers 195313, A195833 and A195853A196933 in the same way as A175003 is related to the generalized pentagonal numbers A001318, A195310 and A000041. See comments in A195825.

The sum of terms of row n is equal to the leftmost term of row n+1. This sequence is related to the generalized tridecagonal numbers 195313, A195833 and A195853 in the same way as A175003 is related to the generalized pentagonal numbers A001318, A195310 and A000041. See comments in A195825.

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The sum of terms of row n is equal to the leftmost term of row n+1.