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 A370964 a(n) = number of "weakly lonesum" 2 X 2 X n tensors. 3
 1, 16, 254, 4006, 62834, 980926, 15251714, 236305246, 3649992194, 56225671966, 864046126274, 13249946549086, 202798763405954, 3098675363464606, 47273845225223234, 720219685203906526, 10958863373616410114, 166560903942055522846, 2528904905860164038594 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Table of n, a(n) for n=0..18. Don Knuth, Parades and poly-Bernoulli bijections, Mar 31 2024. See (19.13). Filip Stappers, Problems concerning parades and poly-Bernoulli numbers, 2024. See Problem 9. Index entries for linear recurrences with constant coefficients, signature (29,-210). FORMULA From Filip Stappers, Aug 25 2024: (Start) a(n) = 2*15^n - 14^n. G.f.: (1-13*z) / ((1-15*z)*(1-14*z)). (End) CROSSREFS Cf. A370962, A370963, A370965. Sequence in context: A317894 A228982 A158531 * A171321 A077412 A208498 Adjacent sequences: A370961 A370962 A370963 * A370965 A370966 A370967 KEYWORD nonn,easy AUTHOR N. J. A. Sloane, Apr 04 2024 EXTENSIONS a(7) from Michael S. Branicky, Apr 07 2024 a(0) and more terms from Filip Stappers, Aug 25 2024 STATUS approved

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Last modified September 15 03:00 EDT 2024. Contains 375931 sequences. (Running on oeis4.)