A203498 Row sums of triangle A203484.

1, 2, 44, 12, 2316, 56, 86756, 7548, 2745504, 14216, 8303228, 27440, 26755926552, 17777912, 337554780656, 166149231952, 41032825702988, 10165065032, 19445273523788, 559223251080, 52853093762480872, 2217608618621076, 3130076262074284420, 9840817961344

Offset

0,2

Comments

Conjecture. If prime p==1 (mod 3), then a((p-1)/3)==2 (mod p); if prime p==2 mod 3, then a(2*p-1)/3)==2 (mod p).

Links

Table of n, a(n) for n=0..23.

Crossrefs

Cf. A202941, A202917, A203269, A203278, A203484, A178473.

Sequence in context: A357279 A362762 A177490 * A156478 A156508 A239865

Adjacent sequences: A203495 A203496 A203497 * A203499 A203500 A203501

Keyword

nonn

Author

Vladimir Shevelev and Peter J. C. Moses, Jan 02 2012

Status

approved