A004375 Binomial coefficient C(7n,n-7).

1, 56, 1953, 54740, 1353275, 30872016, 666563898, 13834413152, 278818865325, 5494563394320, 106395830418878, 2031659407077300, 38359579905883600, 717595238609316480, 13321581681795883020, 245722278467924356560, 4507944342815596914910

Offset: 7

Author

N. J. A. Sloane

Keywords

• nonn
• easy

References

• M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards Applied Math. Series 55, 1964 (and various reprintings), p. 828.

Links

• Vincenzo Librandi, Table of n, a(n) for n = 7..820
• M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards, Applied Math. Series 55, Tenth Printing, 1972 [alternative scanned copy].

Programs

Magma

[Binomial(7*n, n-7): n in [7..30]]; // Vincenzo Librandi, Feb 02 2017

Mathematica

 Table[Binomial[7 n, n - 7], {n, 7, 20}] (* Vincenzo Librandi, Feb 02 2017 *)